and jon stewart's conservative foe, stephen colbert will hold the keep fear alive rally, on the same day next month. >>> now, we know the truth about what actor joaquin phoenix has been up to. you may remember phoenix's very bizarre appearance on dave letterman's show last year. >> he carried on that persona in the documentary, "i'm still here." well, now, the movie's director, casey affleck, says his film is completely fake. and that joaquin has just been playing a role, while telling everyone he was giving up acting in order to pursue a rap career. >> i saw that movie. i'm not surprised. >> casey said, it's the performance of his career. >> we'll see where his career goes for now. >>> up next, the stories we'll be following today, including a milestone for england's future king. milestone for england's future king. we'll be right back. estive syst. think i'l pass. no, no, no! trust me. it is beyond tasty. mmm! wow! i can't believe it, i loe it! mmm, this is really good! new best tasting activia ever! ♪ activia / now you can join the fight against breast cancer every time you enjo